After coming from her birthday party with regretness and bitterness she found her parents slaughtered on the ground as her eyes water in tears.

"Mom, dad!" She ran to them, tapping them to wake them up from their sleep... But the howling was all in vain as they seemed to give up the ghost.

something creepy catches her eyes as she finds a piece of paper in her mom's pocket. Which was written "Mr Smith killed us! With full hope and brokenness, she wended into the street as she was lead by an eccentric lady into prostitution.

Fortunately she was saved by an assassin that came to that particular hotel to kill a person when she was found being harassed by some of the men who had paid an awesome amount of money to sleep with her.

The lady out of sympathy, introduced her into the secret "assassination as she becomes a member of the assassinators, she needed to avenge her parents death.

Things took a turning twist as she was hired by her parents' serious killer, and what happened when the man she seems to fall in love with was his son.